This name is a synonym of Centaurea papposa (Coss.) Greuter.
The record derives from TICA
(data supplied on 2012-02-11)
which reports it as a synonym (record 5D526147-7DAE-43AD-B8C6-C4E0C35C2F62) with original publication details: 136 1851.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:70029084-1.
This name was in version 1 of The Plant List, record gcc-65225.